WebAPI 2 Odata Filter not working - filter

Question

I have a problem with using multiple filters on my WebAPI 2 Odata project.
We only want JSON output and only have one object type to query so we set the url to "/" without the possibility to use a different controller.
I have an object I want to query with the following properties:
public class Content
{
public int Id { get; set; }
public string Title { get; set; }
public string Excerpt { get; set; }
public string Link { get; set; }
public IList<Tag> Tags { get; set; }
}
public class Tag
{
public string Id { get; set; }
public string Name { get; set; }
}
And the controller code looks like this:
public class ContentController : ApiController
{
private readonly IContentRepository _repository;
// constructor
public ContentController(IContentRepository repository)
{
_repository = repository;
}
[Queryable]
public IQueryable<Content> Index()
{
// IContentRepository.GetAll returns an IEnumerable List of Content
return _repository.GetAll().AsQueryable();
}
}
Now, I've mocked some testdata with adding multiple objects to the repository that have multiple tags with values set to either (test1, test2 or test3). Now when i Query
http://localhost:xxx?$filter=Tags/any(o: o/Id eq 'test1')
I get all objects with Tag/Id set to 'test1'. But if I query
http://localhost:xxx?$filter=Tags/any(o: o/Id eq 'test1' and o/Id eq 'test2')
I get no result (JSON return = []). But it should return objects that have both tags.
What am I doing wrong?
EDIT:
My sample data JSON looks like this:
[
{
"Id": 1,
"Title": "TESTOBJECT 1",
"Excerpt": "",
"Link": "",
"Tags": [
{
"Id": "test1",
"Name": "Test Tag 1",
}
],
},
{
"Id": 2,
"Title": "TESTOBJECT 2",
"Excerpt": "",
"Link": "",
"Tags": [
{
"Id": "test2",
"Name": "Test Tag 2",
}
],
},
{
"Id": 3,
"Title": "TESTOBJECT 3",
"Excerpt": "",
"Link": "",
"Tags": [
{
"Id": "test3",
"Name": "Test Tag 3",
}
],
},
{
"Id": 4,
"Title": "TESTOBJECT 4",
"Excerpt": "",
"Link": "",
"Tags": [
{
"Id": "test1",
"Name": "Test Tag 1",
},
{
"Id": "test2",
"Name": "Test Tag 2",
}
],
},
{
"Id": 5,
"Title": "TESTOBJECT 5",
"Excerpt": "",
"Link": "",
"Tags": [
{
"Id": "test1",
"Name": "Test Tag 1",
}
],
}
]
Now query one gives me object 1,4,5 and I would expect query two to give me object 4. How can I accomplish this with odata?

Answer 1

Did you want this?
http://localhost:xxx?$filter=Tags/any(o: o/Id eq 'test1') and Tags/any(o: o/Id eq 'test2')

Answer 2

((X == "test1") AND (X == "test2")) will always return false!
If you want to identify Tags whose property Id is test1 or test2, use the or operator.